Effect of strong coupling on the dust acoustic instability

被引:12
|
作者
Rosenberg, M. [1 ]
Kalman, G. J. [2 ]
Hartmann, P. [3 ]
Goree, J. [4 ]
机构
[1] Univ Calif San Diego, Dept Elect & Comp Engn, La Jolla, CA 92093 USA
[2] Boston Coll, Dept Phys, Chestnut Hill, MA 02467 USA
[3] Hungarian Acad Sci, Wigner Res Ctr Phys, Inst Solid State Phys, H-1525 Budapest, Hungary
[4] Univ Iowa, Dept Phys & Astron, Iowa City, IA 52242 USA
来源
PHYSICAL REVIEW E | 2014年 / 89卷 / 01期
基金
美国国家科学基金会;
关键词
YUKAWA LIQUIDS; PLASMAS; WAVES;
D O I
10.1103/PhysRevE.89.013103
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
In a plasma containing charged dust grains, the dust acoustic instability (DAI) can be driven by ions streaming through the dust with speed less than the ion thermal speed. When the dust is strongly coupled in the liquid phase, the dispersion relation of the dust acoustic modes changes in a way that leads to an enhancement of the growth rate of the DAI. In this paper, we show how strong coupling enhances the DAI growth rate and consider application to microgravity experiments where subthermal ion flows are in general possible.
引用
收藏
页数:5
相关论文
共 50 条